JP3194832B2 - Grain stalk guide device in combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain culm guide device for a combine at a grain culm transfer section from an end portion of a grain culm conveying device for rice and wheat to a start end portion of a feed chain.

[0002]

2. Description of the Related Art Conventionally, in a transfer section of grain culm from a terminal end of a combine culm conveying device to a start end of a feed chain, a lower guide rod for supporting a culm stock from a lower end of a stock carrier. Was just before the feed chain and consisted of a stiff rod.

[0003]

As in the prior art, the lower guide rod at the delivery section of the grain culm stock source from the end of the grain culm conveying device of the combine to the start end of the feed chain only extends up to the front of the feed chain. In particular, when the cereal stalk transport device is holding the spike side of the cereal stalk, the feed chain is not sprouts, especially when the amount of the stalk is small during low-speed operation. The lower part of the cereal stalk is fed first by acting on the root of the stalk, and the posture of the stalk is rolled obliquely, so that clogging occurs at the delivery part, and ear breakage and culm breakage often occur.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a combine having a grain culm conveying device for conveying a harvested grain culm to a threshing device and adjusting the handling depth between the harvesting device and the threshing device. A lower elastic guide rod is provided for guiding the lower surface of the cereal culm passed from the lower end of the stock carrier of the culm conveying device to the start end of the feed chain of the threshing device, and a rear portion of the lower elastic guide rod is provided. , Feed with small amount of culm
Non-transporting action with a height approximately equal to the tip of the chain projection
To the feed chain transport surface
In addition to overlapping, when the amount of culm is large,
The lower part of the lower elastic guide rod lowers and feeds the culm
The above-described problem has been solved by the configuration in which the transfer is performed by a chain .

[0005]

[Function] During harvesting and threshing with a combine, the harvested grain culm is transported by a grain culm transport device, the root of the stock is supported and guided by a lower elastic guide rod, and is delivered to the feed chain of the threshing device, and the spike side is It is inserted into the supply port and threshed. At that time, especially when the amount of cereal stems is small at low speed work,
Since the lower elastic guide rod rises to the vicinity of the tip of the protrusion of the feed chain by elasticity, the feed chain does not convey the stock base part, and the conveyance on the spike side is completed and the grains discharged on the lower elastic guide rod are completed. With the increase in the amount of culm, the rear part of the lower elastic guide rod descends and the root of the stock is transported almost in synchronization with the ear side, so that the cereal culm is supplied to the threshing device in a normal posture Threshing is performed without clogging and with few cuts of ears and culms. Also, when the amount of cereal stalks is high during high-speed work,
The lower part of the lower elastic guide rod is lowered against the elasticity of the lower elastic guide rod according to the amount of the base of the base, and the base of the base comes into contact with the protrusion of the feed chain at an early point, so that the base of the base is almost the same as the ear side. The culms are conveyed in synchronism, so that the grain culm is supplied to the threshing apparatus in a normal posture, and is threshed without clogging and with few cuts of ears and culms.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. The power of an engine 1 is transmitted to a traveling device 2 of a combine via a transmission device, and the reaper 3
The harvested cultivars are fed to a threshing device 6 by a cereal culm transport device 4 via a scraping device and a confluent transport device, and the root of the culm is fed to a feed chain 5 of the threshing device 6.
The kernels are then threshed, and the kernels selected by the separator are put into a kernel tank by a fryer.

[0007] The grain culm conveying device 4 is composed of a stock carrier 7 and an ear carrier 7A provided with a guide rail A- ₁ opposed thereto, and a holder for supporting the holding rail 7a of the stock carrier 7. 7b, a strong upper guide rod 9a which extends over the starting end of the feed chain 5 of the threshing device 6 and presses and guides the upper surface of the base of the stock during high-efficiency cutting, and the feed chain 5 is elastically weaker than the upper guide rod 9a. The approaching upper auxiliary guide rod 9b extends.

From the lower portion of the stock carrier 7 near the rear,
A lower elastic guide rod 8, which is weak enough to be able to bend due to an increase or decrease in the amount of culm, extends over the upper surface of the starting end of the feed chain 5, and its rear portion is gently curved so as to follow the shape of the feed chain 5. In the non-conveying state, as shown in FIG. 3, the height is substantially equal to the height of the tip of the projection 5a of the feed chain 5, as shown in FIG.

A support shaft 12 is provided at a front portion of a rail support frame 11.
An auxiliary rail frame supported so as to be vertically rotatable by
The auxiliary rail 15 is held by two suspension rods 13 so as to be able to move up and down.
When 0 is rotated upward and retracted, the frontmost rail piece 16a of the sandwiching rail 16 is also moved upwardly and interlocked to open a large opening to receive the hand-cut kernels.

During the harvesting and threshing operation by the combine, the harvested culm is transported by the cereal culm transport device 4, and the upper surface of the root portion is guided by the upper guide rod 9a and the upper auxiliary guide rod 9b. When there is little, the upper auxiliary guide rod 9b guides, and when the culm amount is large, the upper auxiliary guide rod 9b is pushed up by the bulky base portion and guided together with the upper guide rod 9a. Further, the lower elastic guide rod 8 is conveyed to the upper surface of the feed chain 5 while supporting the lower surface of the root portion of the grain culm which is conveyed and turned sideways, and is transferred to the upper surface of the feed chain 5. Is done. At that time, especially when the amount of grain culm is small during low-speed operation, the lower elastic guide rod 8 is rich in elasticity and rises to the vicinity of the tip of the projection 5a of the feed chain 5 by elasticity. The lower elastic guide rod 8 is moved along with an increase in the amount of cereal stems discharged on the lower elastic guide rod 8 in a state where the transfer on the spike side is completed but not inserted into the supply port. The rear portion is lowered and conveyed, whereby the grain culm is supplied to the threshing device 6 in a normal posture, and is threshed without clogging and with few cuts of ears and culms.

Also, when the amount of cereal stalks during high-speed operation is large,
The rigidity of the upper guide rod 9a is much higher than that of the lower elastic guide rod 8 and the upper auxiliary guide rod 9b. The rear part of the guide rod 8 is lowered, and the base of the stock comes into contact with the projection 5a of the feed chain 5 at an early stage, so that the base of the stock is conveyed, and the spike side is supplied in an orderly manner following the stock. The culm is supplied to the threshing device 6 in a normal posture, without clogging, and
Threshing is performed in a state where there are few cuttings of ears and culms.

[0012]

According to the present invention, there is provided a combine provided with a grain culm transport device 4 for transporting the harvested grain culm to the threshing device 6 and adjusting the handling depth between the harvesting device 3 and the threshing device 6. A lower elastic guide rod (8) for guiding a lower surface of the cereal culm passed from the lower end of the stock carrier (7) of the culm conveying device (4) to the starting end of the feed chain (5) of the threshing device (6);
Push the rear part of the lower elastic guide rod 8 with the culm amount small.
Of a height substantially equal to the tip of the protrusion 5a of the feed chain 5.
The feed chain 5 is moved so that it is substantially inactive.
When overlapping with the transport surface and when the amount of culm is large,
The rear part of the lower elastic guide rod 8 descends depending on the amount of the base part.
By feeding the cereals through the feed chain 5, the lower elastic guide rod 8 easily bends and descends during high-speed work, so that a large amount of cereals can be fed to the starting end of the feed chain 5. Can be transported without fail.
When the amount of grain is small during low-speed operation, the lower elastic guide rod 8 rises to the vicinity of the protrusions 5a of the feed chain 5 to suppress conveyance until the amount of culm becomes substantially appropriate, and then returns to the normal posture. in next to the receiving pass score, it could be a strain base unit is supplied to the threshing device 6 significantly ahead ear portion, without causing稈詰Ri and ears Broken and culm out and pulling or the like of the culm is small state Can be threshed.

[Brief description of the drawings]

FIG. 1 is a plan view of a front part of a combine.

FIG. 2 is a perspective view of a delivery unit from the culm conveying device to a feed chain.

FIG. 3 is a side view of the same.

[Explanation of symbols]

 4 Grain culm transport device 5 Feed chain 5a Projection 6 Threshing device 7 Stock carrier 8 Lower elastic guide rod 9a Upper guide rod

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01D 61/00-61/04 A01F 12/10

Claims (1)

(57) [Claims] 1. A combine having a grain stalk transporting device (4) for transporting a harvested grain stalk to a threshing device (6) and adjusting the handling depth between the harvesting device (3) and the threshing device (6). And a lower elastic guide rod 8 for guiding the lower surface of the cereal stem passed from the lower end of the stock carrier 7 to the start end of the feed chain 5 of the threshing device 6. Feed the rear part with a small amount of culm.
Of approximately the same height as the tip of the projection 5a of the blade 5
To the feed surface of the feed chain 5 so that
When the culm amount is large,
As a result, the rear part of the lower elastic guide rod 8 descends,
A grain stalk guide device in a combine, wherein the device is configured to be conveyed by a feed chain 5 .